Thank you SO much for such detailed feedback. I will definitely note these down and get polishing asap :D
I see what you mean now with it looking like the character is levitating, I never really noticed that before. I also didn't notice the moving platforms weren't moving at a constant speed, I think I played the game through too many times to notice T_T
I will definitely look into fixing some of the colliders. The character "vibrating" is just his idle animation, he kinda wobbles on the spot I guess xD I've actually already added a change so you can manually rewind the character without having to wait the full time, this was something a lot of people mentioned but unfortunately we ran out of the time. I will be uploading a more polished version of the game after the game jam!